package application

import (
	"fmt"
	"net/http"
	"os"
	"path"

	"sirlab.de/go/knowyt/game"
	"sirlab.de/go/knowyt/log"
	"sirlab.de/go/knowyt/user"
)

func (app *Application) RemoveGame(usr *user.User, w http.ResponseWriter, r *http.Request) {
	gameRef := r.URL.Query().Get("g")
	gm, err := app.GetGameById(gameRef)
	if err != nil {
		w.WriteHeader(http.StatusNotFound)
		fmt.Fprintf(w, "game not found")
		return
	}

	if usr.GetGameId() != gameRef || !usr.IsAdminOrCameo() {
		w.WriteHeader(http.StatusForbidden)
		fmt.Fprintf(w, "forbidden")
		return
	}

	if err := app.removeGame(gm); err != nil {
		log.ErrorLog(err)
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprintf(w, "failed to remove game\n")
		return
	}

	fmt.Fprintf(w, "ok")
}

func (app *Application) removeGame(gm *game.Game) error {
	log.Info("game %s: start removing\n", gm.GetId())

	gameInfo := gm.GetGameInfo()
	for _, player := range gameInfo.Players {
		log.Info("game %s: removing player %s (%s)\n", gm.GetId(), player.Id, player.Name)

		if err := app.removePlayerById(player.Id, gm); err != nil {
			return err
		}
	}

	gameBaseDir := path.Join(app.config.DataDir, "games", gm.GetId())
	log.Info("game %s: removing quotes dir\n", gm.GetId())
	quotesDir := path.Join(gameBaseDir, "quotes")
	if err := os.Remove(quotesDir); err != nil {
		log.Error("failed to remove quotes\n")
		return nil
	}
	log.Info("game %s: removing state file", gm.GetId())
	stateFilename := path.Join(gameBaseDir, "state.json")
	if err := os.Remove(stateFilename); err != nil {
		return err
	}

	if err := gm.RemoveGame(); err != nil {
		return err
	}

	log.Info("game %s: removing game dir", gm.GetId())
	if err := os.Remove(gameBaseDir); err != nil {
		return err
	}

	app.mu.Lock()
	delete(app.games, gm.GetId())
	app.mu.Unlock()

	log.Info("game %s removed\n", gm.GetId())

	return nil
}